Surgical operating-table.



L. SMITH.

SURGICAL OPERATING TABLE.

APPLICATION FILED APR. 6. 19H.

Patented May 28,1918.

.Q mi m f y 'n m -l I i NNIN e ne NN LEO sMIrII, or I-IAMMOND, INDIANA, AssIeNonl ro FRANK s. Bnrz oOMrANY, or

' HAMMOND, INDIANA, A CORPORATION or INDIANA.

SURGICAL OPERATING-TABLE.

remera.

Specicationof Letters Patent.

ratentea May as, rois.

Application led April 6, 1917. Serial No. 160,158.

To all whom it may concern: y

Be itknown that I, LEO SMITH, a citizen of the iUnited States of America, and a resident of Hammond, county of Lake, and Stateof Indiana, have invented certain new `and useful lmprovements in Surgical @pervating-Tables, lof which the following is a.

specification. i

i The main objects of this inventionf are to `provide an adjustablesupporting device for tables and the like, which device is operable so that the table may be set at substantially any :desired f longitudinal or trans .verse angle; to providesuch a supporting [but rigid construction and which is simple and `convenient to operate.

An illustrative embodiment of this invention is shown in the accompanying'. drawings, in which- Figure 1 is a side elevation of the improved form of adjustable supporting device particularly designed for surgical operating tables.

Fig. 2 is a right end view of the same.

Fig. 3 is a left end view of the same.

The specic embodiment herein illustrated comprises a standard l, a pair of members 2 and 3, in the form of gear sectors, adjustably arranged relative to each other and to the standard, so that a table t` (indicated in dotted outline in the figures) may be adjusted to occupy substantially any desired angle within certain' limits, longitudinally or transversely of the length thereof.

structionand should be mounted upon a base (not shown), the size and shape of which will depend upon the use to which the table is to be put. The upper end of the standard is shaped to provide a forkl 5l with- `.'tiallyl a full semi-circular element, upon the ends of which brackets 7 and 8 are mounted.

`sides of the gearsector 2.

rlFhe brackets 7 and 8 are supported on trunnions or stud shafts 9 andlO, the axes'of lwhich are alined and disposed substantially perpendicular to the axis of the stud shaft 6. These bracketsare arranged so as to be secured` to the under. sideof `,the table` 4:, whereby itis firmly supported in, place on the standard. A

'lhe member or gear sector 3 is, formed on the underside vof the bracket `8, being, in

the lembodiment here shown, an integral part thereof.` rlhis gear sector is also substantially asemi-circular element. j

forms 11 and 12 are journaled on the standard 1. and member 2 respectively, so as `to mesh with the respective gear sectors 2 `and 3. The worm 11 1s journaled at the baseof the fork 5 on an axis disposed in the plane of the gear sector 2, and the .worm 12 is journaled in `bearings 13 on an axis substantially parallel to the axis of the gear sector 2. The bearings 13 are formed on the ends of arms 111 and secured to the opposite Hand wheels 15 and 16 are provided for rotating the wormsll and 12 respectively.

The' hand wheel 15 is secured to a shaft 17 journaled in bearings 18 at right angles to the axis of the worm 11 and parallel to the axis of the gear sector 2. Beveled gears 19 and 2O are secured respectively to the shaft 17 and the shaft 20.1 which carries theworm 11, whereby therotation of the hand wheel 15 is communicated to said worm. rlhe hand `wheel 16 is secured directly to the shaft 21 which carries theworm 12 and supports it on the bearings 13. i

The bearings 1S are forlnedvon the Vends of arms 22 carried by` a collar 23 rigidly `secured on the standard 1 below the worm 11. j j

rllhe operation of the device shown is as follows: The standard maybe of any suitable con- When it is desired to adjust the angular `disposition of the table 4 longitudinally of its length, the hand wheel 15 is rotated, whereupon through the action of the gears 19 and 20, the worm 11 is rotated so astorevolve the gear sector 2 about the axis of its supporting shaft 6. When it is desired 105 to adjust the angular disposition of the table transversely `of its length, the hand Wheel 16 is rotated, which rotates the worm 12 and causes a partial revolution of the gear sector 3.` `The arrangement of the `gear sectors 2 and 3 is such that they are each shiftable through an angle of very close to 1800, sothat'thetableinay be set at almost any angle longitudinally or transversely 'of 5 its length, nearly 90O either Way fromthe horizontal.

The use of the ,Worm vand gear in this` ar-` rangement provides a self-locking mechanism Which insures the vretention ofthe-table inany angle at which it may be placed,

vre"gardless of the'loadthereon.Y

"saidiirst-mentionedjgearsector, said gear sectors' coacting! to support a table, gearing first mentioned gear sector,I other "gearing jouriialed on said first `mentioned gearj'fsect'f'or and meshingl with'said second mentioned-gear'sector, 'andineans for operating said gearing whereby :to shift said "gear sectors relative t0 said standard and to -each lother for the purpose of, adjusting "`the'-3angular disposition-ofthe table With Akrespect* to said standard;

2. fInfa device of Vthe classi described,- the "40 l'-"c'zoir'ibination `of-a standard, a gearsector tilt- 'Lably inountedon zsaid standard on ay transverse'f-axis, va second gear sector tiltably "inounted ony said f'irst` mentioned 4`gear sector lon an 'axis transverse to'sa-id standard and 5'fsubstai'1tiallyperpendicular* to the axis of Jsaidlirst"mentioned gear sector, said gear sectors coacting to support fa table, gearing j'eurnaled -onv said vstandard Vand meshing *With said iirstfinentioned gear sector, other '5" o gearing l' j ou'rnalled on said first l mentioned `gear sector and meshing With said second i'nent'ioned gearsector, and separate means for operating said first andl second `r*mentined gearing vvhereby to shift said' gear 55sectorsindependntly-ofeach other, `relative Jto k"said standard `for lthe purpose 'of adjustingthefangular v'disposition `of the table'tvith'respect tol said standard. v

' f3.' fIn la, device oi the' class described, the

yso "combination `of "a standard, fa substantially semi-circularfgear sectorf'tiltably mounted "nlfsaid standard on a "transverse axis, a

"bracket'tiltably mounted' on said vgearsector onanfaxis substantially perpendicular to the "e5 axisf said 'gearsector, said'bracket being tiltably mounted on said standard ona transanaxis substantially parallel' to the axis of saldi first mentioned gear sector and having "gearing connecting it With said Worin, a secgear sector, anda hand Wheel connected to` adaptedto support a table thereon, a gear sectorv formed on said bracket and disposed substantially.perpendicular tosaid iirst inenvtioned gear sector, gearing journaled on said -standardfandgmeshing with said rst inen- .tioned gear sector, other gearing journaled -on ysaid vfirst mentioned gear sector and meshing With said second mentioned gear sector,-andfineans for operating said gearing whereby to shift said gear sectors relative to said standardand-to each other for the 'purpose of adjusting the angular dis- .position'of the table with respect `to said standard.

4. lIn' a device of theclass'described, the 'combination of a standard,asubstantially semi-'circular 'gear sector tiltably mounted on said standard on a transverse axis, a pair `oifbrackets tiltablymounted on the ends of said 'gear' sector in axial alinement-With each Aotlier,"wliich y'axis `is substantially perpenstantially perpendicularto said` iirst inentioned gear sector," gearing'iournaled on said v c, l'standard'and ineshing'with said-'irst men- -journal'ed `'onsaid standard and meshing tio'iied gear sector, lothergearing `journalefd on said first mentionedfgear Asector and jmeshing `With said second mentioned gear sector, and means for operating said'. gearstandard.

5.7In a device of the` class described, the combination of a standard, `a gear sector verse axis, a second gear sector vtiltably mounted on said first mentioned gear sector on an axis transverseto said standard and Vsubstantially perpendicular to the axis of "saidfirst inentioned'gear sector, said gear sectors coacting to support a table, a Worm journaled on said standard and meshing 'With said iirst mentioned gear sector, a hand Wheel also journaled on saidstandard on ondvvorm j'ournaled on said first mentioned gear sector and meshing twith s'aid second said second worm and having the-axis thereof Idisposed substantially Aparallel to .the

, axis of said vfirst mentionedl gear sector, said hand Wheels being adapted' tof'be manipulated for adjusting the angular disposition of the table With respect' toI the standard.

6.1In a device of 'the class described,` the 'combination of a standard, a gear sector `tiltably `mounted on said standard on a transverse axis, a' second' gear' sector tiltably 130 mounted on said first mentioned gear sector on an aXis transverse to said `standard and substantially perpendicular to the aXis of said first mentioned gear sector, said gear sectors coacting to support a table, a Worm journaled on said standard and meshing with said gear sector, a hand wheel also journaled on said standard on an axis substantially parallel to the axis of said first mentioned gear sector and having gearing connecting it with said Worm, a second Worm journaled on said rst mentioned gear sector, and a hand Wheel connected to said Worm and having the axis thereof disposed substantially parallel to the axis of said first men- 15 Signed at Hammond, Ind., this 30th day 20 of March, 1917.

` LE() STH.

Uopies of this patent may be obtained for ve cents each, by addressing the Commissioner of JPatents, Washington, I). G. 

